261331

Appears in sequences

• a(n)=2a(n-1)+a(n-2)-4a(n-4).at n=18A134270
• Number of n X 4 0..4 arrays with row sums 4 and column sums n.at n=4A172816
• Number of n X 5 0..4 arrays with row sums 5 and column sums n.at n=3A172821
• Number of 5*n X 4*n 0..4 arrays with row sums 4 and column sums 5.at n=0A172850
• Number of n X 5 0..5 arrays with row sums 5 and column sums n.at n=3A172868
• Array read by antidiagonals: T(n,k) is the number of n X k nonnegative integer matrices with all column sums n and row sums k.at n=49A333901
• Array read by antidiagonals: T(n,k) is the number of n X k nonnegative integer matrices with all column sums n and row sums k.at n=50A333901